[zenithfan1]

I've found that the "auto restore" function of the Sencore CR-70 is really good at waking up and tracking them without harm (when the 8v heater method isn't enough). I tried to hurt a crappy tube with it once and couldn't, not saying it can't be done but you really have to try to make it happen. It says hold the button and let it go through three cycles but I've found that one cycle is often just what you need. I had to do it on my CTC-9's red gun and that was 2 years ago and the tube still holds after sitting for a year and then I subjected it to hundreds of hours of use as of now. It tests really strong but still needs a few minutes to warm up if it sits for more than a week, so I guess maybe it's starting to get soft but man, what a picture!!